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Yes, it is possible in Catalyst, though the way to get this behavior properly would still be to go into Builder.
What you'll need:
1. The content you want to scroll
2. The button(s) you want to cause the scrolling
3. A video asset that plays for a short duration (we're going to use it as a timer)
What you would basically do is this:
Convert your artwork and controls to a Scroll Panel
Make your control buttons start and stop a "Timer" instance of your video asset, which loops (option in the PI inspector)
Add an "On Play Complete" Action Sequence to your Timer video instance, which moves your scrolling content
I think that should get you going, let me know if you need more detailed instructions.
This repeats a "Move" action, so there's going to be a bit of jerkiness
To do this properly you really will need to customize it in Builder
Try to use a short video asset with a small file size, or your project may become overly large
You may want to add a "Move" action to the Roll Over button event to start the moving
Your method look promising indeed. I will try it out when i am building the final application. sounds logical to me.
right now i achieve the same kinda effect by using "invisible buttons" with rollovers that play an action sequence. It works for now. its only for a paper prototype now.